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Old 28th July 2010, 02:21 AM   #1
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Default First tube mic preamp?

Hello there,
Im trying to find an "easy" dual tube mic preamp schematics on the internet and not finding one. Im sure I found one not too complicated not so long ago but I just cant find it again. Any ideas for a beginner like me?

cheers
Stinni
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Old 29th July 2010, 07:18 PM   #2
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There are many schematics out there, but first you need to think about the specs:
- Active/passive balanced or not I/O
- Type of microphone?
- Phantom power?
- Input/Output impedance
- Gain and frequency response
- Power supply, AC or battery (ie studio or field use)

Ponder that and call me in the morning! E
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Old 5th August 2010, 02:17 AM   #3
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Default dancing cocoamachines

Quote:
Originally Posted by mickeymoose View Post
There are many schematics out there, but first you need to think about the specs:
- Active/passive balanced or not I/O
- Type of microphone?
- Phantom power?
- Input/Output impedance
- Gain and frequency response
- Power supply, AC or battery (ie studio or field use)

Ponder that and call me in the morning! E
Hey mickey,
thanks for replying , doesnt seem like popular question hehe well I was thinking about:
- balanced I/O active.
- ribbon mic or for condencer
- phantom power.... yes please +48 with some chocolate juice.
- impedance input hmmm I would say 2k and output maybe 500 ohm
- power supply ,,, not over 20vac (studio - AC)
-gain 60+
- 20hz - 100khz freq. response.
so Mr. mickey, hope you can help me and direct me to some places with schematics and stuff to read about or give me some words of wisdom Im really new to this so any advices will be gladly excepted.

cheers from the land of ice and snow

Stinni
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Old 6th August 2010, 03:37 PM   #4
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On top of the page, right hand side under "Search" type in "tube microphone preamp" and see what comes up. Also, your post should be moved to the "Tubes" section for better luck! E
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Old 6th August 2010, 03:40 PM   #5
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Pete Millet has just started a thread on his tube microphone pre-amplifier in the tubes/valves section of the forum..
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Old 7th August 2010, 04:13 PM   #6
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ahhh thanks guys,,, brilliant. I guess it's better to post in the right place,,, heheh thanks for your help.
cheers
stinni
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